Comment 3 for bug 1469868

For what it's worth we'll want to use

     glance-manage db_load_metadefs /usr/local/etc/metadefs {overwrite,merge,prefer_new,}

The latter, I believe, depends on how you want metadefs to be loaded into the database when existing metadefs exist. If users are adding their own and on upgrade we load the new metadefs from upstream, then we may cause problems for users who've created their own.

Perhaps we should only provide a way to load metadefs, not do it by default?